user www-data www-data;
worker_processes  2;

error_log  /var/log/nginx/error.log;
pid        /var/run/nginx.pid;

events {
    # max clients = worker_processes * worker_connections
    worker_connections  1024;
}

http {
    include       /etc/nginx/mime.types;
    default_type  application/octet-stream;

    #access_log  /var/log/nginx/access.log;

    sendfile        on;
    #tcp_nopush     on;

    #keepalive_timeout  0;
    keepalive_timeout  65;
    tcp_nodelay        on;

    gzip  on;
    gzip_min_length 1100;
    gzip_buffers 4 8k;
    # text/html is added gzip_types by default
    gzip_types text/plain application/x-javascript application/x-shockwave-flash text/css;
    
    #NO CGI SUPPORT IN NGINX fix stat .pl later

    upstream web_backend {
        server 127.0.0.1:8000;
        server 127.0.0.1:8001;
        server 127.0.0.1:8002;
        server 127.0.0.1:8003;
        server 127.0.0.1:8004;
        server 127.0.0.1:8005;
        server 127.0.0.1:8006;
        server 127.0.0.1:8007;
        server 127.0.0.1:8008;
        server 127.0.0.1:8009;
        server 127.0.0.1:8010;
        server 127.0.0.1:8011;
        server 127.0.0.1:8012;
        server 127.0.0.1:8013;
        server 127.0.0.1:8014;
        server 127.0.0.1:8015;
        server 127.0.0.1:8016;
        server 127.0.0.1:8017;
        server 127.0.0.1:8018;
        server 127.0.0.1:8019;
        server 127.0.0.1:8020;
        server 127.0.0.1:8021;
        server 127.0.0.1:8022;
        server 127.0.0.1:8023;
        server 127.0.0.1:8024;
        server 127.0.0.1:8025;
        server 127.0.0.1:8026;
        server 127.0.0.1:8027;
        server 127.0.0.1:8028;
        server 127.0.0.1:8029;
    }

    upstream api_backend {
        server 127.0.0.1:8030;
        server 127.0.0.1:8031;
        server 127.0.0.1:8032;
        server 127.0.0.1:8033;
        server 127.0.0.1:8034;
        server 127.0.0.1:8035;
        server 127.0.0.1:8036;
        server 127.0.0.1:8037;
        server 127.0.0.1:8038;
        server 127.0.0.1:8039;
        server 127.0.0.1:8040;
        server 127.0.0.1:8041;
        server 127.0.0.1:8042;
        server 127.0.0.1:8043;
        server 127.0.0.1:8044;
    }

    upstream bulkapi_backend {
        server 10.0.0.10:8000;
        server 10.0.0.11:8000;
        server 10.0.0.12:8000;
        server 10.0.0.10:8001;
        server 10.0.0.11:8001;
        server 10.0.0.12:8001;
        server 10.0.0.10:8002;
        server 10.0.0.11:8002;
        server 10.0.0.12:8002;
        server 10.0.0.10:8003;
        server 10.0.0.11:8003;
        server 10.0.0.12:8003;
    }
    
    upstream tah_backend {
        server 10.0.0.10:8004;
        server 10.0.0.11:8004;
        server 10.0.0.12:8004;
        server 10.0.0.10:8005;
        server 10.0.0.11:8005;
        server 10.0.0.12:8005;
    }

server {
        listen   80;
        server_name  .openstreetmap.org api.openstreetmap.org;
        root /home/rails/public;
        index index.html;
        access_log  /var/log/nginx/openstreetmap.org.access.log;
    
        include /etc/nginx/fastcgi_params;

        #Redirect Historical Links to correct servers
        location /trac/ {
            rewrite ^/trac/(.*)$ http://trac.openstreetmap.org/$1 permanent;
        }

        location /wiki/ {
            rewrite ^/wiki/(.*)$ http://wiki.openstreetmap.org/$1 permanent;
        }

        location / {
            allow all; 
        }
    
        #Handle api.openstreetmap/ -> api.openstreetmap/api/
        if ($host ~* api\.(.*)) {
            rewrite ^/(0\.[0-9]+)/(.*)$ /api/$1/$2;
        }
    
        location /api/ {
            include /etc/nginx/fastcgi_params;
            if ($http_user_agent ~ "^tilesAtHome") {
                #deny all;
                fastcgi_pass tah_backend;
                break;
            }
        }

        location ~ ^/api/0\.6/(map|relation|trackpoints|amf|amf/read|swf/trackpoints|trace/[0-9]+/data)$ {
            fastcgi_pass bulkapi_backend;
            break;
        }
        
        location ~ ^/api/0\.6/.*/search$ {
            fastcgi_pass bulkapi_backend;
            break;
        }

        location ~ ^/api/0\.6/.*/full$ {
            fastcgi_pass bulkapi_backend;
            break;
        }

        # fastcgi Web / Data Browser / Relations etc
        location ~ ^/api/0\.6/ {
            fastcgi_pass api_backend;
            break;
        }

        #Deny unknown API version
        location ~ ^/api/0\.[0-9]+/ {
            deny all;
        }
            
        #Handle Special Case Expiry
        location ~ ^/(export|openlayers)/ {
            expires 7d;
        }
        location ~ ^/(images|javascripts|stylesheets)/ {
            expires max;
        }
    
        location / {
            fastcgi_index index.html;
            if (!-f $request_filename) {
                fastcgi_pass web_backend;
                break;
            }
        }

        location /crossdomain.xml {
            default_type text/x-cross-domain-policy;
        }

        #error_page  404  /404.html;
        # redirect server error pages to the static page /50x.html
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   /var/www/nginx-default;
        }
    }
}